[sngm]

39. Statins are very effective against hypercholesterolemia, a major cause of
atherosclerosis. These drugs reduce plasma cholesterol levels by
(A) Preventing absorption of cholesterol from the intestine.
(B) Increasing the excretion of cholesterol from the body via conversion
to bile acids.
© Inhibiting the conversion of 3-hydroxy-3-methylglutaryl-CoA to
mevalonate in the pathway for cholesterol biosynthesis.
(D) Increasing the rate of degradation of 3-hydroxy-3-methylglutaryl CoA
reductase.
40. Measles, Mumps, Rubella-MMR combined vaccine represents which one of
following vaccine categories?
(A)Inactivated/killed
(B) Live, attenuated
©Subunit
(D)Toxoid (inactivated toxin)
41. A haemophiliac man marries a normal woman. They have a daughter who
does not show symptoms of haemophilia. If she marries a haemophiliac man,
what will be the probability of their son displaying symptoms of haemophilia?
(A)0%
(B) 25%
© 50%
(D)100%
42. The conventional treatment for methanol toxicity is to administer ethanol.
Which of the following explains the basis of this treatment?
(A) Ethanol acts as a competitive inhibitor to methanol
(B) Ethanol acts as a non-competitive inhibitor to methanol
© Ethanol destroys the enzymatic activity of alcohol dehydrogenase
(D) Ethanol blocks the entry of methanol within the cells.
43. What will be the angular velocity of a rotor in a centrifuge operating at 6000
revolution per minute?
(A) 62.8 radians per second
(B) 628 radians per second
© 6.28 radians per second
(D) 6280 radians per second